Improved machine for drilling oil-wells



NITED STATES `r-vrnNT Finca.

ROBERT II. LECKY, OF ALLEGHENY4 CITY, PENNSYLVANIA. Y

IMPRVED MACHINE FOR DRILLING OIL-WELLS.

Speoication forming part of Letters Patent No. 33,351, dated September 24, 1861.

To al?. whom it may concern:

Be it known that I, ROBERT Il. LECKY, of the city and county of Allegheny and State of Pennsylvania, have invented a new and .Improved Machine for Drilling and Pumping ()il\Vells; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon.

The nature of myinvention consists in the use and arrangement ot' a drop-head, catches, tripper, revolving slides, and sliding head, the whole being arranged, constructed, and operated in the manner hereinafter described.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

In the accompanying drawings, Figure l is a side view ot the machine. Fig. 2 is an end view of the same.

a is the base ot the machine.

Z1 is the frame, which is bolted to the base a by means ot' bolts or screws l.

y are rods, which are used for the purpose of steadying and preventing the trarne from spreading apart.

to are the journal-boxes of the shaft r..

2 are the caps of the journal-boxes, and are held to their place by means of bolts 1.

'L' is a small pulley on shaft r, and is used in connection with the large pulley for driving the hoisting-drum 71.

d is a balancewheele is the cylinder of the driving-engine.

f :is the piston-rod.

f is the pitman.

g is the crank. l

is a rod used for holding the tripper yr, which is held in the desired posit-ion on thc rod 7 by means of the set-screw G.

On the end of the shaft 7c is secured the.l

disk l, in which are two slots, in which are placed the butments, (marked 4,) which are held in their proper position by means ot the set-screws 3.

e are marks or a scaleused regulating the position of the butments 4 in the slots of the disk Z. To the butments are attached the catches t, which are moved by the triggers a. The catches t and triggers u are held in their proper position by the spiral. springs w. The triggers u may be set at any desired angle by means of the set-screws 5.

m are the slides for the drop-head p, and are secured to the disk Z. The drop-head p slides upon the slides m and is furnished To the sliding head n is attached the rody 8, to which the drilling-tools are attached.

The operation of my improvement is as follows: Having all things arranged and constructed as described and represented, power is applied to the crank g, which will cause the disk Z to revolve, which will bring the triggers u in contact with the tripper @and thereby uncouple the catches s and t, which will allow the drophead p and the sliding head n to drop. At each drop ot the heads p and `n. the catches s and t become locked and remain so until the triggers u again come in contact with the tripper 7', which will again uncouple them and allow the heads to drop. The stroke ot' the drilling-tool is regulated by moving the butnlents in or out from the center ot the disk Z. For a long stroke they are moved out from the center. For a short stroke they are moved in toward the center. It will be observed that by my improved drilling-inacl1ine a quick stroke is imparted to thc drilling-tool, and that it will answer for pumping as well as for drilling oil-wells.

Having thus described the nature, construction, and operation of my invention, what l claim as of my invention, and desire to secure by Letters Patent of the United States, is

l. The use of drop p, having a revolving and perpendicular motion and used in combination with the self-acting catches t and tripper r, as herein described, and for the purpose set forth.

2. The .use of the revolving slides 'm when and revolving slides m, vns herein described,

'usedin connection with .the drop p or .the .and for 'thepurpose setfforth.

equivalent of said drop, as herein described',

and for the purpose set forth. 1 R. H. LECKY.

8. The arrangement of the rod 7, tripper i Witnesses:

r, butments 4, sliding head n, and rods o and GEORGE P. STECK,

8, when used in combination with the drop p 1 JAMES MILLER. 

